What amount of heat is released during the combustion of 6 coal (s) if the reaction equation

What amount of heat is released during the combustion of 6 coal (s) if the reaction equation is С + O2 = CO2 + 402.24KZhD

Let’s compose the equation of the coal combustion reaction.

C + O2 = CO2 + 402.24 kJ.

The reaction involves 1 mol of carbon.

1 mol (C) – 12 kg.

When burning 12 kg of coal, 402.24 kJ of heat is formed,

and when burning 6 kg of coal – Q kJ.

Let’s make the proportion:

12 kg – 402.24 kJ,

6 kg – Q kJ.

Q kJ = (6 × 402.24 kJ): 12 = 201.12 kJ.

Answer: Q kJ = 201.12 kJ.